Fluctuations in Strongly Correlated Electron Systems

TL;DR

This paper explores the interconnected origins of charge-density-wave fluctuations, time-reversal-symmetry-breaking, and pseudogap formation in high-temperature cuprate superconductors, highlighting their fundamental role in strongly correlated electron systems.

Contribution

It reveals that these phenomena share a common root and mechanism, advancing understanding of strongly correlated electron behaviors in superconductors.

Findings

Charge-density-wave and time-reversal-symmetry-breaking fluctuations share a common origin.

The same mechanism underlies pseudogap formation in cuprates.

These phenomena are fundamental to strongly correlated electron systems.

Abstract

High transition temperature superconductors in cuprates exhibit the charge-density-wave fluctuations and the ferromagnetic time-reversal-symmetry-breaking fluctuation in the polar Kerr rotation experiments. We demonstrate that they share the same root of origin, and the underlying mechanism also leads to the pseudogap formation. The pseudogap formation, the charge-density-wave fluctuation, and the time-reversal-symmetry-breaking fluctuation are the consequent phenomena of the correlation. They are the basic notions in strongly correlated electron systems.